问题 选择题

下列关于治理大气污染的说法不正确的是 [ ]

A.为了改善空气质量,必须控制大气中二氧化硫、氮氧化物、烟尘等污染物的排放量

B.防止化石燃料燃烧产生的二氧化硫和汽车尾气中的氮氧化物对大气的污染是改善大气质量的重要任务

C.避免汽车尾气中的有害气体对大气的污染,目前最有效的方法是给汽车安装尾气净化装置

D.为了防止悬浮颗粒物进入大气,应该将混有悬浮颗粒物的气体通过水洗后再排放

答案

答案:D

阅读理解

阅读理解。

     Basketball is a young game.  In the year of 1891, a famous college was having some trouble with its

boy students.  The weather was bad. They couldn't play outside. So they were unhappy.  Sometimes

they even got into fights.

    Finally, some teachers asked Dr Naisimth to invent a game so that the students might have something

to play indoors.

    Dr Naisimth thought for a few days and invented a kind of ball game.  It was a fast, exciting game with much moving and passing of the ball. It was played between two teams.  In order to make a score, the

ball had to be thrown into a basket ten feet above the floor on the wall.

    At first, Dr Naisimth had planned to have the ball thrown into a box.  As' he couldn't find boxes of the

right size,  he had to use fruit basket instead.  That is how the game got its name basketball. The history

of this game is over 100 years.   

根据短文内容,选择正确的答案。

1. Basketball is _____ game.

A. a difficult    

B. an easy    

C. a young

2. Who invented the basketball game?

A. Dr Brown.    

B. Dr Naisimth.    

C. Mr Black.

3. Basketball was invented for the students   ___ in bad weather.    

A. to play happily indoors

B. to play outside

C. to fight indoors

4. Basketball game was played        _.    

A. between two teams  

B. among three teams    

C. by a team

5. Basketball has its history of  __   years now.

A.10    

B. more than 100    

C. less than 100

单项选择题